package com.zzty.service;

import com.zzty.entity.Group;

import java.util.List;

public interface GroupService {
    public List getUsers();
    public boolean insert(Group group);
    public Integer getIdByUserName(String userName);
    public String getUserNamesByUserName(String userName);
    public String getName1ById(Integer id);
    public String getName2ById(Integer id);
    public Integer checkGrouped(String userName);
    public List getGroups();
    public boolean deletes(Integer groupId);
}
